AWS Systems Manager helps teams view, manage and operate nodes at scale in AWS, on-premises and multicloud environments. A unified console shows nodes across accounts and Regions, and tools such as Run Command, Session Manager, Patch Manager and Parameter Store cover remote commands, patching and configuration storage. The service is delivered as a managed cloud service, used through the AWS console, command-line tools and SDKs.
Systems Manager is operated by Amazon Web Services, a US provider, so it falls under US jurisdiction, including the CLOUD Act. It is available in many AWS Regions, among them Frankfurt, Paris, Ireland, Stockholm and London. AWS states that customer content stays in the Region you select and that it challenges overbroad government requests. The service is proprietary and not open source. European organisations can choose an EU Region, but should weigh the jurisdiction of the provider when managing sensitive infrastructure.